Preheat oven to 425°.,______,Combine remaining 1/4 teaspoon salt, remaining 1/4 teaspoon pepper, vinegar, mustard, honey, and garlic in a large bowl, stirring with a whisk. Gradually add the remaining 3 tablespoons oil, stirring constantly with a whisk. Add roasted vegetables; toss to coat. Sprinkle with parsley.,Make-ahead tip: Roast the veggies several hours ahead; toss with vinaigrette about an hour before the party. Serve at room temperature.